Software Architect · Senior Developer
Jim Zandueta
I’m a software architect who came to code through design. For more than ten years I’ve built internal platforms, APIs and cloud systems. I also design the screens that go with them. Most days I work in TypeScript, Node.js, NestJS, React, AWS and Terraform, from the first diagram to the deploy.
Featured projects
All projects-
Work
Apparel Order Platform
A full rebuild of an apparel manufacturer's order system, from the first quote to the final payment, with an API, a web app and AWS infrastructure.
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Work
Salesforce Data Sync Platform
An event-driven platform that keeps an AWS database in step with Salesforce, with full and delta sync.
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Open source
tala
A zero-dependency TypeScript library of stock indicators with a fluent chain API.
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Open source
oowl
An opinionated workflow layer for OpenCode.
Latest posts
All posts-
A Timezone Bug That Moved Dates Back a Day on Every Save
Stakeholders reported that saving a quote moved its date back by a day. The cause was a timezone mix-up I could never have seen from the Philippines, and the fix was one rule about how to store a date.
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I Built a Website That Redesigns Itself Every Day
My site switches to a different design movement every day, twenty-eight of them. The hardest part was making each one look like itself and not like its neighbours.
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I Was Paying an AI to Reread My Stack Traces, So I Built oowl
Thirty prompts into a feature, I noticed my AI coding agent was rereading my old stack traces and abandoned plans on every request. I built oowl, a workflow layer for OpenCode, so each role gets only the files and notes its job needs.